RE: [PHP] Type of form element

-----Original Message----- > From: Chris Shiflett [mailto:shiflett@php.net] > Sent: 31 October 2005 17:19 > To: Marcus Bointon > > Marcus Bointon wrote: > > The thing I was wrong on is that PHP converts unset parameters (as > > opposed to nonexistent ones which it obviously can't do anything > > about) to an empty string, e.g. given ?a=&b=1, $_REQUEST ['a'] is "", > > not NULL. > > That's right, except we seem to have a vocabulary discrepancy: > > 1. To me, "unset" and "not set" are not the same thing (sort of like how > "untie" and "not tied" are also not the same). Well, yes, except that "unset" and "not set" also *ARE* the same thing, sort of like how "untied" and "not tied" are also the same thing! (Since untied is the past participle of untie -- but unset is the past participle of unset, hence the ambiguity!) Cheers! Mike ------------------------------------------------------------------------ ---------------- Mike Ford, Electronic Information Services Adviser, Learning Support Services, JG125, The Library, James Graham Building, Headingley Campus, Beckett Park, LEEDS, LS6 3QS, United Kingdom Tel: +44 113 283 2600 extn 4730 Fax: +44 113 283 3211 To view the terms under which this email is distributed, please go to http://disclaimer.leedsmet.ac.uk/email.htm